Piano-flange.



WILLIAM W. MCCLL, OF KANSAS CITY, MISSOURI.

PIANOQFLANGE.

Specification ofLetters Patent.

Patented sept. 22, 190s.

Application tiled December 17, 1906. Serial No. 348,247.

To all utzonzqz'fmay concern:

Be. it known that I, WILLIAM lV. MCCALL, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented certain new and useful Improvements in Pia.no'l*`la.ngcs,of which the following` is a. specification.

My invention relates to improvements in piano flanges.

The object of my invention is to provide a piano flange b v which thehammer may be easily and uiekly adjusted in its proper position andtiren securely held in the a( justed position irrespective of use orshrinking or war )ing of the rail. Y

The novel features of my invention are hereinafter fully described andclaimed.

In the accompanying drawings, illustrative of my invention, Figure 1 isa view showing part of the hammer action in side elevation, the railbeing shown in cross section, said hammer action being provided with a.flange of my invention. Fig. 2 is a vertical sectional view taken on thedotted line (L -b of Fig. 1. Fig. 3 is a vertical sectional view of thetlange and rail, taken on the plane of the dotted line c-d of Fig. 2.horizontal sectional view taken on the dotted line e-f of Fig. 3. Fig. 5is an elevation of the grooved side of the pivotally adjustable memberof the. llangc. Fig. 6 is an elevation of the other member of theflange. Fig. 7 is a cross section view of the rail having secured to ita modified form of my invention, the flange being shown in edgeolevation. Fig. S is an elevation of the form of my invention shown inFig. 7 looking toward the grooved side of the rail, a portion of whichis shown. Fig. 9 is a vertical sectional view taken on the dot-ted lineg-h of Fig. 7. Figs. 1t)Y and 11 are elevations of the two platesforming the flange illust-rated in Fig. 7.

Similar characters of reference denote similar parts.

1 denotes the rail, 2 the hammer, 3 the hammer shank, 4 the buttbloekand 5 the hammer center pin to which the butt block is pivoted in theordinary manner.

In the form of my invention illustrated in Figs. 1, 2, 3, 4, 5 and 6,the flange comprises two plates 6 and 7 disposed vertically end adaptedto clamp between them adjacent their upper ends the hammer center pin 5,the side of the plate 6 next the plate 7 haviigr a transverse grooveadapted to receive and hold said pin, said groove being denoted by Fig.4 is av plate havi- S. The depth of the groove 8 is such that the. plate7 will press against the pin. The ower end of the plate 7 is provided'with a projection 9i adapted to enter a longitudinal groove 10 in theadjacent vertical side of the rail 1 for the purpose of preventingivotal movement of the plate 7 relative to t ie rail. The projection E)is provided with a verticalopenmg 1I through which extends the lower endof the plate. 6, said opening being large enough to permit pivotalmovement of the plate 6 on a single horizontal screw 12 which extendsthrough openings provided in thev plates t3 and 7 and into the rail 1,said screw serving to secure the plates 6 and 7 together and to therail. lhe projection 9 serves to limit the pivotal adjust-ment of theplate 6- Preferably one of the plates forming the flange is of resilientmaterial, and preferably this resilient plate is the plate 7, suchprovision prevents the plate-s becoming loose in case the rail 1 shrinksor warps.

In case it is desired at any time to adjust the hammer. the screw 12 isslightly loosened, after which the plate 6 may be moved pivotallj to theproper position and the screw then tightened so as to tightly clamp thepin 5.

In the form of my invention shown in Figs. 7 to- 11 inclusive, the partsare made as described wi .i reference to the form of my invent-ion justdescribed, excepting thatthe projection tl of the plate 7 is not)rovided with a vertical opening to receive tlhe lower end of the plate6, but the plate 6 is made shorter than the plate 7 and at its lower endextends to a point. a short dist-ance above the upper side er' theprojection 9 of the plate 7. ll'ith this c -onstructioin the plate 6 maybe pivotally adjusted on the screw 12 as above described. the projection9 by striking the adjacent lawer corner of the plate G serving to limitthe nivotal adjustment of said plate 6. In other respects than justnoted, the two forms my lnvention are identical.

My invention may be modified in other ways within the sco )e of theappended claims without departing rom its spirit.

Having thus described my invent-ion, what l claim and desire to secureby Letters Patent, is:-

i. In a piano flange, the combination with a hammer center pin, of twoplates )ivotally adjustable one relative to the otiher, one g a grooveto' receive the hammer center pin on the side adjacent to the otherplate, and one of said plates being resilient.,

i 2 l i the plates having means for engagingT with each other forlimiting said adjustanilitv, andiueans for clamping said platestogether.

In pianos, the combination with a rail, of two plates, one plate beingpivotally adjustable relative Vto the other, and one plate having meansfor engaging the other to .imit said adjustabilit-v, and means forsecuring said plates together and to the r-ail. A

3. In pianos, the combination with a rail, of a hammer center pin, twoplates for clamping between them the hammer center pin, one plate havinga groove for receiving the said pin, the grooved plate being pivotally/adjustable relative to the rail, and one of t-he plates having means forengaging the other plate for limiting such adjustability, and means forsecuring the plates together and to the rail.

.4. In pianos, the combination with a rail, of a hammer center pin, twoplates adapted to clamp between them the hammer center pin, one platehaving a groove to receive said pin, one of said plates being resilient,and the grooved plate being pivotally adjustable relative to the rail,t-he other 'plate having a projection for engaging the rail to preventpivotal movement of said other plate, said projection having an openingto receive the grooved plate -and also serving to limit the pivotaladjustment of the grooved plate, and means for securing the platestogether and to the rail.

5. The combination with a rail having a longitudinal groove, of twoplates, one plate the plates together and to the rail. 40

6. The combination with a rail having a longitudinal groove, of twoplatesl` one plate i havingr a groove, the grooved plate being pivotallyadjustable relative to 't ie rail, one

of the plates being resilient, the plate other than the grooved platehaving a projection entering said groove in the rail, and means forsecuring the two plates together and to t-he rail.

7. The combination with a rail having a longitudinal groove, of a hammercenter pin, two plates adapted to clamp between them the hammer centerpin, one of the plates having a project-ion for entering said groove,the

other plate having a. groove to receive the said pm, t-he grooved platebeing pivotally adjustable relative to the rail, and a single screwextending through said two plates for securing the plates together andto the rail.

In testimony whereof I have signed my name to this specification inpresence of two subscribing witnesses.

WILLIAM XV. MCCALL. I'Vitnesses E. B. HOUSE, C. S. I'IoL'r.

